Number of (n+2)X(5+2) 0..2 arrays with no row, column, diagonal or antidiagonal in any 3X3 subblock summing to 2 or 4.
A251679
Number of (n+2)X(5+2) 0..2 arrays with no row, column, diagonal or antidiagonal in any 3X3 subblock summing to 2 or 4.
Terms
- a(0) =5151a(1) =13031a(2) =54523a(3) =264983a(4) =1374165a(5) =7229485a(6) =38111915a(7) =201286237a(8) =1064712861a(9) =5635265205a(10) =29825486345a(11) =157850862859a(12) =835509700715
External references
- oeis: A251679